CVE-2026-57211
MEDIUMRabbitMQ: UNC SSRF affecting the management UI on Windows
Title source: cnaDescription
RabbitMQ is a messaging and streaming broker. Prior to 4.1.11 and 4.2.6 on Windows, the RabbitMQ management plugin static file handler rabbit_mgmt_wm_static can pass URL-encoded backslashes to erl_prim_loader:read_file_info before path validation when multiple management extension plugins are enabled, causing outbound DNS and SMB requests to attacker-controlled UNC paths. This issue is fixed in versions 4.1.11 and 4.2.6.
References (5)
Core 5
Core References
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https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-7v84-m3g5-vxq6
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https://github.com/rabbitmq/rabbitmq-server/pull/15803
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https://github.com/rabbitmq/rabbitmq-server/commit/39c3a8e9c71da0403d8dfc13f700e60c936e3682
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https://github.com/rabbitmq/rabbitmq-server/commit/6730797f6a34b4e8308cea60adf1243857e70204
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https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
Scores
CVSS v3
6.5
EPSS
0.0028
EPSS Percentile
19.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-36
CWE-918
Status
published
Products (3)
broadcom/rabbitmq_server
4.1.0 - 4.2.6
rabbitmq/rabbitmq-server
>= 4.1.0, < 4.1.11
rabbitmq/rabbitmq-server
>= 4.2.0, < 4.2.6
Published
Jul 10, 2026
Tracked Since
Jul 11, 2026